/*ajax请求函数模块
* 返回值为promise对象*/
import  Axios from "axios"
import router from '../router'
const Message= this.$Message

Axios.interceptors.request.use(config=>{
  const token = localStorage.getItem("token")
  if (token) {
    config.headers.common['Authorization'] = 'Bearer '+token
  }
  return config
}),err=>{
  return Promise.reject(err);
}

Axios.interceptors.response.use(response => {
  // 在这里你可以判断后台返回数据携带的请求码
  if(response.data.code === 403){
    Message.error('登录信息已过期');
    router.replace('/login').then(value =>{

    })
  }
  return response
}, function (err) {
  if (err && err.response) {
    switch (err.response.status) {
      case 400: err.message = '请求错误(400)' ; break;
      case 401: err.message = '未授权，请重新登录(401)'; break;
      case 403: err.message = '拒绝访问(403)'; break;
      case 404: err.message = '请求出错(404)'; break;
      case 408: err.message = '请求超时(408)'; break;
      case 500: err.message = '服务器错误(500)'; break;
      case 501: err.message = '服务未实现(501)'; break;
      case 502: err.message = '网络错误(502)'; break;
      case 503: err.message = '服务不可用(503)'; break;
      case 504: err.message = '网络超时(504)'; break;
      case 505: err.message = 'HTTP版本不受支持(505)'; break;
      default: err.message = `连接出错(${err.response.status})!`;
    }
  }else{
    err.message = '连接服务器失败!'
  }
  Message.error(err.message);
  return Promise.reject(err);
})



export default  function ajax(url,data={},type="GET"){
  Axios.defaults.withCredentials = true
  Axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';// 全局设置post请求的数据编码格式
  let promise ;
  if(type === "GET"){
  promise = Axios.get(url,{
    "params":data
  });
  }else{
    promise = Axios.post(url,data)
  }
  return promise
}